Advanced Water Heating Specification

Find the electric and natural gas advanced water heating specifications and accompanying qualified products lists below.

Advancing the market for heat pump water heaters

Utilities, energy efficiency organizations and market partners developed the Advanced Water Heating Specification (AWHS) to advance higher performing electric and gas heat pump water heaters. While this specification is rooted in ensuring performance in cooler northern climates, its applicability and benefits extend well beyond the Northwest. The specification also enhances the end goals of NEEA's water heating programs - to influence the passage of federal standards requiring heat pump levels of performance for both gas and electric storage water heaters.

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AWHS Draft v8.1

The Advanced Water Heating Specification v8.1 is open for public comment for 60 days starting March 15.

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The current version of the AWHS is version 8.0. Additional resources such as qualified products lists (QPLs) are available in the listed resources below.
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Electric Advanced Water Heating Specification
Version 8.0

This document succeeds NEEA’s previous Advanced Water Heating Specification (AWHS Version 7.0). This version has been expanded to include commercial, multifamily, and industrial water heating systems in addition to residential water heaters. Notably, this version has no substantive changes to the residential water (Unitary and split system) heater portion of the specification compared to
Version 7.0.

View Document
Residential Heat Pump Water Heaters
Qualified Product List

The Residential HPWH QPL contains information on Residential HPWH products that meet the Advanced Water Heating Specification requirements. These products are found in Single Family or low rise multifamily (in residential dwelling units). The list also indicates if the listed product qualifies for the Inflation Reduction Act (IRA) 2023
tax credit.


View the QPL
Commercial Heat Pump Water Heaters
Qualified Product List

The Commercial HPWH QPL contains information on Residential Multifamily Commercial products that meet the Advanced Water Heating Specification requirements. These products generally serve five or more dwelling units and have a central plant attached to a circulation system. Commercial product systems include a heat pump engine, storage tanks, mixing valves, control systems
and connectivity.

View the QPL
 

Additional Resources

Visit HotWaterSolutionsNW

Hot Water Solutions is an initiative of the Northwest Energy Efficiency Alliance (NEEA) working to accelerate the adoption of heat pump water heaters in the Northwest by providing resources, tools and support to increase sales and installations of heat pump water heaters.

View the Hot Water Solutions website